U.S. agricultural competitiveness : evidence from invention data /
| Main Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | 
      New Haven, Connecticut :
        Yale University, Economic Growth Center,
    
      1989.
     | 
| Series: | Center Paper
              No. 414             | 
Sistema de Bibliotecas de Universidad de Costa Rica
| Copy | Available | 
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